{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-31842 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-31842 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-31842 is a medium-severity vulnerability in McAfee,LLC McAfee Endpoint Security (ENS) for WIndows, published on 17 Sep 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-31842 and fix it if it is affected.\n\nWhat it is: CVE-2021-31842 is a medium-severity vulnerability in McAfee,LLC McAfee Endpoint Security (ENS) for WIndows, published on 17 Sep 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-31842 in the wild and no public exploit code.\n\nAffected product: McAfee,LLC McAfee Endpoint Security (ENS) for WIndows. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2021-31842/ (Markdown: https://insights.sbomify.com/CVE-2021-31842/index.md)","id":"CVE-2021-31842","markdown":"https://insights.sbomify.com/CVE-2021-31842/index.md","name":"CVE-2021-31842","record":{"aliases":["GHSA-93hf-xxfj-6gx3"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Endpoint Security","requires_auth":"low_privilege","summary":"A local attacker can cause a denial of service by exploiting an XML entity expansion vulnerability in the endpoint security setup process.","user_interaction":"required","vuln_class":"xxe"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"trellix","cpe":[{"product":"endpoint_security","vendor":"mcafee"}],"cvss":{"score":5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-776","name":"Improper Restriction of Recursive Entity References in DTDs"}],"description":"XML Entity Expansion injection vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 September 2021 Update allows a local user to initiate high CPU and memory consumption resulting in a Denial of Service attack through carefully editing the EPDeploy.xml file and then executing the setup process.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"XML external entity in McAfee Endpoint Security (ENS) for WIndows","id":"CVE-2021-31842","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xxe","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Improper access control vulnerability in McAfee ENS for Windows","id":"CVE-2021-31843"},"packages":[],"prev":{"headline":"DLL side loading vulnerability in MA for Windows","id":"CVE-2021-31841"},"products":["McAfee Endpoint Security (ENS) for WIndows"],"published":"2021-09-17","related":[{"cvss_score":8.8,"headline":"Improper Access Control Vulnerability in ENS for Windows","id":"CVE-2020-7319","kev_date_added":null,"published":"2020-09-09"},{"cvss_score":8.8,"headline":"Privilege Escalation vulnerability through symbolic links in ENS for Windows","id":"CVE-2020-7264","kev_date_added":null,"published":"2020-05-08"},{"cvss_score":8.8,"headline":"Privilege Escalation vulnerability through symbolic links in ENSM","id":"CVE-2020-7265","kev_date_added":null,"published":"2020-05-08"},{"cvss_score":8.6,"headline":"McAfee Endpoint Security updates fix a privilege escalation vulnerability","id":"CVE-2019-3582","kev_date_added":null,"published":"2019-02-28"},{"cvss_score":8.4,"headline":"Privilege Escalation vulnerability through Symbolic links in ENS","id":"CVE-2020-7257","kev_date_added":null,"published":"2020-04-15"},{"cvss_score":8.2,"headline":"Improper Access Control in the ENS installer","id":"CVE-2021-23882","kev_date_added":null,"published":"2021-02-10"},{"cvss_score":8.2,"headline":"ENS symbolic link log file manipulation vulnerability","id":"CVE-2020-7250","kev_date_added":null,"published":"2020-04-15"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["McAfee,LLC"]},"summary":"A local attacker can cause a denial of service by exploiting an XML entity expansion vulnerability in the endpoint security setup process.","url":"https://insights.sbomify.com/CVE-2021-31842/"}